Color

#003a47

#003a47
hex#003a47
rgbrgb(0, 58, 71)
hslhsl(191, 100%, 14%)
oklchoklch(0.322 0.058 218.4)
Closest name: Royal Neptune (#1c3b42)Relative luminance 0.0348

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#470d00

#004731 · #001747

#47003a · #3a4700

Split-complementary

Open in tool →

#470017 · #473100

#310047 · #470d00 · #174700

Contrast

#003a47 as textRatioAAAA largeAAAFix
Aaon white
12.38:1passpasspassPasses AAA — no fix needed.
Aaon black
1.7:1failfailfail
  • AA: use #00819e as the text (4.63:1)
  • AAA: use #00a7cc as the text (7.4:1)
  • AA: or shift the background to #9c9c9c (4.51:1)
  • AAA: or shift the background to #c4c4c4 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #003a47 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#003a47 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #003a47
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #003a47 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/003a47-a2b6be-df4e7a-1f252d-e9f1ef?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md